FLEX Series LED Floodlights Powder Coating Specification

Powder Coating

We use carboxyl polyester resin. Polyester powder coating is mainly applied to air conditioners, crust of park appliance, open furniture etc.

Product series

Coating can be categorised into two groups: with TGIC or without TGIC. It can produce the product of high gloss (above 80%), sub-gloss (20-50%) and the matte. The gloss can be adjusted according to the customers specification.

Physical characteristics of the powder

Proportion (25°C.g/cm3): 1.4 – 1.7

Particle size distribution: 100 percent lower 100 micron (particle size distribution can be adjusted according to particular requirement of spray)

Typical Curing conditions

200°C (work piece temperature), 15 minutes


Testing Testing standard or method Test rating
Gloss Semiflat Matt
Impact resistance GB/T 1732-1993 50kg.cm 40kg.cm 40kg.cm
Cup-drawing test GB/T 9753-1988 8mm 7mm 7mm
Adhesive force (drawing grid) GB/T 9286-1998 Grade 0
Bending GB/T 6742-1986 2mm 3mm 3mm
Pencil hardness GB/T 6739-1996 1H-2H
Salt spraying test GB/T 1771-1991 > 500 hours
Humid heat test GB/T 1740-1979 > 1000 hours
Heat resistance 150℃/24 hours(white) Excellent gloss retention, aberration, ≤0.3-0.4
Resistance to climate (accelerated weathering) 60℃/8 hours UV+50℃/4 hours, condensation, cycle 500 hours Gloss retention ≥50%, colour stability: aberration